Muscular system

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Across
  1. 4. an organ that primarily controls movement and posture
  2. 6. organs of the body such as the intestines and stomach
  3. 10. the fixed attachment
  4. 11. the muscle shortens and pulling the lower arm up
  5. 12. a wide sheet like tendon
  6. 14. a group of fiber
  7. 15. the main portion
Down
  1. 1. makes up approximately 42% of total body weight
  2. 2. the point of attachment to the part of the body moved by this muscle
  3. 3. they are located at joints
  4. 5. muscles are stretched or partially torn from overexertion
  5. 7. an organ or tissue protrudes through an area of weak muscle
  6. 8. caused by injury, overuse, or natural aging
  7. 9. one of the major muscles
  8. 13. like a skeletal muscle but are smaller and shorter